In \(sin(X+30)^o=cos40^o\),find X
10o
20o
50o
60o
90o
Correct answer is B
\(sin(X+30)^o=cos40^o\\
X+30+40=90^o\)complementary angles
\(X=20^o\)
In the diagram, PQ||SR. Find the value of Z
30o
40o
45o
90o
120o
Correct answer is D
Given PQ//SR
x = 45º
y = 45º
z = ?
Sum of angles in a triangle = 180º
(x + y + z)º = 180º
(45 + 45 + z)º = 180º
90º + zº = 180º
z = (180 - 90)º
z = 90º
In ∆PQR. ∠PQR is a right angle. |QR| = 2cm and ∠PRQ = 60o. Find |PR|
4√3cm
4cm
2√3cm
\(\frac{4}{3}cm\)
1cm
Correct answer is B
No explanation has been provided for this answer.
\(\frac{5}{25}\)
\(\frac{7}{20}\)
\(\frac{3}{5}\)
\(\frac{2}{3}\)
\(\frac{5}{6}\)
Correct answer is C
No explanation has been provided for this answer.
The values of x when y = -1 are approximately
-10 and 2.0
-1.3 and 2.3
-0.6 and 2.6
-0.6 and 1.6
1.6 and 1.6
Correct answer is D
No explanation has been provided for this answer.
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